A $4\mathrm{.}00-kg$ block rests between the floor and a $3\mathrm{.}00-kg$ block as shown in the figure. The $3\mathrm{.}00-kg$ block is tied to a wall by a horizontal rope. If the coefficient of static friction is $0\mathrm{.}500$ between each pair of surfaces in contact, what horizpntal force F must be applied the $4\mathrm{.}00-kg$ block to make it move? $)=(9\mathrm{.}8\frac{m}{s^2}$

Coefficient of static friction between the $4kg$ block and the floor is also $0\mathrm{.}500$

A$)23N$

B$)17N$

C$)32N$

D$)49N$

E$)40N$